Fix some error parser unit tests. A trailing colon was being included in several source files.
Part of the fix is in CDT fix <https://bugs.eclipse.org/bugs/show_bug.cgi?id=296966> and Austin/MCL/sftools/dev/eclipseenv/eclipse 123:71e3840b8eca
<contexts>
<context id="hoverHelpContext">
<description>Hover Help Guide</description>
<topic href="resources/help context/dl_hover/html/getting_started.html" label="Overview"/>
<topic href="resources/help context/dl_hover/html/setup.html" label="Set Up"/>
<topic href="resources/help context/dl_hover/html/preferences.html" label="Preferences"/>
</context>
</contexts>